a typical air-fuel ratio sensor
A key component in feedback fuel systems is called the Oxygen (O2) Sensor. Located in the exhaust stream, the O2 Sensor detects the relative amount of oxygen that remains after combustion in an engine. The O2 sensor is electrically connected to the on-board computer, which interprets the signal and adjusts the air-fuel ratio as necessary to ensure maximum efficiency. For more info on trouble-shooting oxygen sensors, see Oxygen Sensor Testing.
Use with the feedback system to sense the presence of oxygen in the exhaust gas and signal the computer which can reference the voltage signal to an air/fuel ratio. !-- google_ad_client = "pub-5892925108295539"; google_alternate_color = "FFFFFF"; google_ad_width = 300; google_ad_height = 250; google_ad_format = "300x250_as"; google_ad_type = "text"; google_ad_channel ="4636922922"; google_page_url = document.location; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "990000"; google_color_url = "990000"; google_color_text = "000000";
Also called an "O2" sensor. Device that monitors oxygen content in engine exhaust to correct air-fuel ratio. These can be one, two, or three-wire sensors. They are usually mounted in the exhaust manifold or the downpipe. Many turbocharged vehicles mount the O2 sensor in an "O2 housing" that sits between the turbocharger's exhaust outlet and the downpipe. On the S12, CA18ET-equipped cars have the O2 sensor on the O2 housing. For CA20E-equipped cars, it is in the exhaust manifold.
Measures the amount of oxygen in the exhaust.
A device found in the exhaust manifold, which generates a small voltage dependent on the amount of oxygen present in the exhaust stream, used as a signal to the engine-control computer to determine the amount of fuel necessary to maintain a proper air/fuel ratio.
An electronic sensor that sits in the exhaust stream and provides the ECU with a reading of the oxygen % in the exhaust gas. A narrow band sensor is used by the ECU for cruise conditions. A wide-band sensor is used by a workshop for tuning - the wide band sensors give very good indications of running lean / rich, while the narrow band sensors are less accurate. [ edit
An oxygen sensor is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed. The sensing element is usually made with a zirconium ceramic bulb coated on both sides with a thin layer of platinum and comes in both heated and unheated forms. The most common application is to measure the performance of internal combustion engines in automobiles and other vehicles.
